# ts-invariant [TypeScript](https://www.typescriptlang.org) implementation of [`invariant(condition, message)`](https://www.npmjs.com/package/invariant). Supports `invariant.log`, `invariant.warn`, and `invariant.error`, which wrap `console` methods of the same name, and may be stripped in production by [`rollup-plugin-invariant`](../../archived/rollup-plugin-invariant). The verbosity of these methods can be globally reconfigured using the `setVerbosity` function: ```ts import { setVerbosity } from "ts-invariant"; setVerbosity("log"); // display all messages (default) setVerbosity("warn"); // display only warnings and errors setVerbosity("error"); // display only errors setVerbosity("silent"); // display no messages ```